Switch Description Position | Siemens 125-3208 specs

SED2 VFD Electronic Bypass Option Operating Instructions

After the basic sanity test, if the DIP switches have not changed and there is no operator intervention, the most recent bypass function is restored. If the DIP switches have changed, the Electronic Bypass Option activates the Stop/Reset function.

2.Press the Enable key on the Electronic Bypass Option keypad to place the unit in VFD mode.

3.Perform SED2 commissioning per the SED2 VFD Startup, Operation, and Maintenance Manual (125-3201). If using the Quick Commissioning mode, end this mode with P3900 = 3 to run a motor calculation without resetting the SED2 to factory defaults.

4.After basic SED2 operation is established and verified, turn SED2 power off via the Electronic Bypass Option input power device and verify that no dangerous voltages are present in the enclosure.

5.Select Electronic Bypass Option application features using the DIP switches.

DIP Switch Settings for E-Bypass Features.

	Switch	Description
	Position	Description
	Position

1Essential Services selector switch.

2Automatic Bypass selector switch; requires SED2 programming.

3Interlock selector switch; requires SED2 programming.

4Factory test #1 selector switch. Not used; leave this switch OFF.

5Factory test #2 selector switch. Not used; leave this switch OFF.

NOTE: When the switch is ON, the feature is enabled; when the switch is OFF, the feature is disabled. For details on the Electronic Bypass Option features, see the Application Feature Setup section in this manual.

6.Re-apply power to the Electronic Bypass Option. On units with three contactors, energize the SED2 by pressing the Input pushbutton on the Electronic Bypass Option keypad.

7.Program the SED2 per the Application Feature Setup section in this manual.

8.Test all SED2 and bypass features.

20	Siemens Building Technologies, Inc.

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Siemens 125-3208 operating instructions Switch Description Position, DIP Switch Settings for E-Bypass Features

Contents

SED2 VFD Electronic Bypass Options Page SED2 VFD Electronic Bypass Option Operating Instructions Page Service Statement Page Table of Contents Application Feature Setup Technical Specifications Troubleshooting How to Use this Manual Notation Symbol MeaningManual Organization Manual Notations Where To Send Comments Reference Documents Safety Instructions General Description Electronic Bypass Option OverviewFuses optional Controller Board Controller Board Inputs and Outputs Contactors Keypad Functions Pushbutton/Indicator Description Pushbutton/Indicator Description Output relay on the Controller board Installation Instructions Mechanical InstallationDimensions and Weights Environmental Conditions Bypass Dimensions in Inches Centimeters Mounting Frame Sizes D and E Conduit Locations Viewed from Bottom Electrical Installation Bypass Power Circuit Routing of Power and Control Wiring For Frame Sizes a and B Disconnect Overload Ground Lug Switch Disconnect Overload Ground Lug Wire Max Startup Procedures Safety PrecautionsInstallation Inspection Power-On Switch Description Position DIP Switch Settings for E-Bypass Features Quick Commissioning User Access Level Parameter Description Action Setting DefaultQuick Commissioning America Operation for Europe/NRated Motor Voltage Rated Motor Power Rated Motor CurrentRated Motor cosPhi P308, or Rated Motor Efficiency P0309 Rated Motor Frequency Rated Motor Speed Start Command Selection of Command SourceMotor Overload Factor Selection of Frequency Speed Command SourceSetpoint Minimum Motor Frequency Maximum Motor Frequency Ramp-up Time Ramp-down time End Quick Commissioning Additional Parameter Settings Flying StartFlying Start R0000 Motor Current Flying Start Search Rate Flying Start Automatic Restart Automatic Restart SED2 VFD Electronic Bypass Option Operating Instructions Number of Restart Attempts Time to First Restart Vdc Controller Restart Time Increment Pulse Frequency Motor Data Identification Motor Data Identification Motor Data Identification Reset to Factory Defaults P0970 Required SED2 Parameter Settings Parameter Setting Application Feature Setup OverviewAuto Bypass without Interlock Description Settings Example SED2 Settings Interlock Application Feature Setup Essential Services Wiring Example for Interlock Wiring Example for Essential Services Interlock and Auto Bypass on VFD Fault Wiring Example for Interlock and Auto Bypass on VFD Fault Technical Specifications Specifications DescriptionDrive Specifications Description Electronic Bypass Specifications Drive Specifications Description SED2 VFD Electronic Bypass Operating Instructons Troubleshooting Power-on Initialization Failure Unit Fault ConditionBasic Sanity Description Test Fault Code/Flashes Basic Sanity Test Fault Codes Override Jumper Fuses Fuse Replacement Information VFD0122R2 Troubleshooting Siemens Building Technologies, Inc